
function s1_hello(){
echo "hello, world!"
}
function s2_tell_who_i_am(){
echo "$(whoami)"
}
function s3_which_distro_do_i_use(){
if [ -f /etc/os-release ]; then
./etc/os-release
echo "NAME=\"${NAME}\""
else
echo "Unable to determine OS release."
fi
}
function s4_view_my_cpu_arch()
{
uname -m
}
function s5_show_first_scsi_disk_size(){
lsblk -d -n -o SIZE,TYPE | awk '$2 == "disk" && $1 ~ /^sd[a-z]/ {print int($1/1024)}'
}
function s6_show_main_memory_size_in_megabytes(){
free -m | awk '/^Mem:/ {print $2}'
}

